Updated mediawiki/skins
Project: mediawiki/skins/BlueSky  669eddfb9c3d2dd2de6017cde467fcd0257c03a7

* i18n fixes
* Code cleanup
* Fixed the help page link under the "Help us" menu in the header

Change-Id: I37a0e40f9f0b564ca9654a5480a80d253efd3688